Ratty-matty

pulled up went up a kerb my headlight went dim , then died completely , its a custom and i havent looked at it yet , is this serious , the brake light still works when the levers are activated but no running light when there not , and the speedo light occsionally works , any ideas , iv checked all the connections the fuses and that could it be the reg rec or the switch also does anyone have a PDF of the wiring diagram and manual for an 84 yamaha xs250

I had a little sr125 trick for speed is simple ! Loose some weight , rear foot pegs , change the exhaust etc etc , also try changing the rear can & rejet the carb that's what I done and was getting 65 70 at a real push also make sure you don't short shift